Question

Quinine is one of the best-known fluorescent molecules, and the sensitivities of fluorometers are often specified in terms of the detection limit for this molecule. The structure of quinine is given next. Predict the part of the molecule that is most likely to behave as the chromophore and fluorescent center.

Short answer

The part of the molecule that behaves as the chromophore and fluorescent centre should be determined.

Step-by-step solution

Given Information

The part of the molecule that behaves as the chromophore and fluorescent centre should be determined.

Explanation

Fluorescent- The emission of light from a substance which absorbs light or other type of electromagnetic radiation is called fluorescent. Fluorescent is a form luminescence. The Fluorescent mostly occur when the absorbed radiation is in the UV (Ultra violet) region of the spectrum.

Quinine- The chemical compound obtained from the bark of the cinchona tree is called Quinine. The Quinine is mainly used for the treatment of malaria.

The below figure represent the structure of quinine.

Chromophore- Chromophore is a group of molecule or chromophore is an atom which shows the colour of a compound. Chromophore is present in the molecule of compound. In Chromophore auxochrome is attached as a functional group of atom. The auxochrome is present with one or more pairs of electron.

The below figure represents the part of the molecule that behaves as the chromophore and fluorescent centre.